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Annual Biennial

Capsicum annuum var. annuum (Longum Group) 'Diablo'

sweet pepper 'Diablo'

A high yielding, ox horn sweet pepper variety producing attractive, smooth skinned, long, pointed, glossy, ruby red fruits that can grow up to 16cm in length. The flesh is crunchy and sweet. Harvest between July and October

Size
Ultimate height
0.5–1 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Neutral, Acid
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green Green Red
Autumn Green Green Red
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Solanaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus

Capsicum are annual or perennial plants, with simple, alternate leaves, and tubular or bell-shaped flowers. They are grown for their glossy, many-seeded edible fruits, including chilli and bell peppers, and as indoor ornamental plants

Name status

Accepted

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How to grow

Cultivation

Sow indoors from mid-February to early April in small pots filled with good quality seed compost and maintain a constant temperature of 25C. Transplant seedlings into individual pots when two true leaves have formed and grow on in a sunny, sheltered spot. Stake to keep plants upright. Water regularly and feed with a high potash liquid fertiliser once the first fruit has set. See vegetable cultivation

Propagation

Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice

Suggested planting locations and garden types
  • Patio and container plants
  • Conservatory and greenhouse
Pruning

Pinch out growing tips to encourage branching

Pests

May be susceptible to aphids, glasshouse whitefly, glasshouse red spider mite

Diseases

May be susceptible to grey moulds and blossom end rot. Shows resistance to tobacco mosaic virus (TMV)

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